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A sinter draft type vertical cooling furnace and a sinter cooling method

A cooling furnace and air extraction technology, which is applied in the sintered ore exhausted vertical cooling furnace and sintered ore cooling, sintered ore cooler and sintered ore cooling field, can solve the problem of low boiler thermal efficiency, difficulty in efficient recovery of sensible heat from sintered ore and the Problems such as utilization, fan power consumption, etc.

Active Publication Date: 2020-08-28
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter which cooling method is used, the cooling machine has problems such as large air leakage rate, high fan power consumption, low sensible heat recovery rate, and low boiler thermal efficiency.
In other words, in the current environment where the market has increasingly stringent requirements for energy saving and green manufacturing in sinter production, the original equipment structure has been difficult to achieve efficient recovery and utilization of sinter sensible heat

Method used

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  • A sinter draft type vertical cooling furnace and a sinter cooling method
  • A sinter draft type vertical cooling furnace and a sinter cooling method
  • A sinter draft type vertical cooling furnace and a sinter cooling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] like figure 1 As shown, a sintered ore extraction type vertical cooling furnace, the vertical cooling furnace A0 includes a silo 1 , a tower body 2 , an air intake and discharge device 3 , and a discharge device 4 . The tower body 2 includes a tower top 201 , a tower wall 202 and a tower bottom 203 . The tower top 201 is provided on top of the tower wall 202 . The tower bottom 203 is arranged at the bottom of the tower wall 202 . The silo 1 is arranged above the tower top 201 and communicates with the inside of the tower body 2 . The air intake and discharge device 3 is arranged below the tower bottom 203 and communicates with the inside of the tower body 2 . The discharge device 4 is arranged below the air intake and discharge device 3 . The upper part of the tower wall 202 is provided with an exhausted hot air outlet 5 . The discharging device 4 is an electro-vibration feeder.

Embodiment 2

[0117] like figure 2 As shown, Example 1 is repeated, except that the shaft cooling furnace A0 further includes a material sealing distribution pipe 6 . The top of the material seal distribution pipe 6 is connected to the silo 1 , and the material seal distribution pipe 6 extends into the tower body 2 ; the length of the material seal distribution pipe 6 is 55% of the height of the tower body 2 . The bottom of the vertical cooling furnace tower is a cone-bottom structure. The air intake and discharge device 3 is a hollow tubular structure, and the side wall of the air intake and discharge device 3 is a louver structure.

Embodiment 3

[0119] like image 3As shown, Example 1 is repeated, except that the vertical cooling furnace A0 also includes a material sealing material distribution pipe 6 . The top of material sealing material distribution pipe 6 is connected with feed bin 1, and material sealing material distribution pipe 6 stretches in the tower body 2; The length of material sealing material distribution pipe 6 is 55% of tower body 2 heights. The bottom of the vertical cooling furnace is a flat structure. The air inlet and discharge device 3 is a hollow tubular structure, and the side wall of the air inlet and discharge device 3 is a louver structure. The vertical cooling furnace A0 also includes a discharge chute 7 , and the discharge chute 7 is arranged below the discharge device 4 . The discharge device 4 is a mobile plate discharge device. The moving plate type discharge equipment includes a driving device 401 , a moving plate 402 , a bracket 403 , and a push-pull rod 404 . The support 403 is a...

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Abstract

The invention discloses an induced-draft vertical cooling furnace for sintered ores. The vertical cooling furnace comprises a stock bin, a tower body, an air intake discharge device and discharge equipment. The tower body comprises a tower top, a tower wall and a tower bottom. The tower top is arranged at the top of the tower wall. The tower bottom is arranged at the bottom of the tower wall. Thestock bin is arranged above the tower top and communicates with the interior of the tower body. The air intake discharge device is arranged below the tower bottom and communicates with the interior ofthe tower body. The discharge equipment is arranged below the air intake discharge device. An induced-draft hot air outlet is formed in the upper part of the tower top or the tower wall. The verticalcooling furnace has the cooling characteristics of being low in cooling speed for the sintered ores, low in cooling air amount consumption per ton, relatively low in waste gas amount, high in waste gas temperature, high in boiler heat efficiency, capable of utilizing all cooling waste gas by a boiler, and capable of reaching about 70% of recovery rate for the sensible heat of the sintered ores generally.

Description

technical field [0001] The invention relates to a sintered ore cooler and a sintered ore cooling method, in particular to a sintered ore exhausted vertical cooling furnace and a sintered ore cooling method, belonging to the field of iron making and environmental protection. Background technique [0002] In recent years, with the increasingly tense relationship between energy consumption and environmental protection in our country, energy conservation and environmental protection have attracted the attention of the whole society, and made it a key measure to build a resource-saving and environment-friendly society. Energy conservation and environmental protection work involves all aspects. Energy conservation and environmental protection in the industrial field is the focus and difficulty of energy conservation and environmental protection work, especially for the steel industry with high energy consumption and environmental pollution. The energy consumption of the sintering ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D15/02
CPCC22B1/26
Inventor 贺新华张震孙英温荣耀
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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